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Antenna's on Phantom 3 Advanced

Discussion in 'General Discussion' started by JohnnyShadow, Feb 23, 2016.

  1. JohnnyShadow

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    Hi,

    I'm new here, hope to learn lots of cool stuff. Nice to "meet" you all.

    The Phantom 3 Advanced remote has two antennas...Is one for transmitting remote control uplink, and the other for receiving Lightbridge downlink? Reason I ask is because once I get about 3,000 feet away, RC signal drops and gives me low signal strength, but the HD is still full bars and I have uninterrupted video. Its like my outbound signal is weaker than inbound signal...is this possible? I fly in a suburban area where there is a fair amount of wifi/cell signals. Just trying to figure out why RC signal drops off, while HD remains full bars.

    Thanks for any info you can provide.

    John
     
  2. KyleMaxxUAV

    Approved Vendor

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    I had a similar issue yesterday, I found it strange given that most people will lose video but maintain control much farther.


    Sent from my iPhone using PhantomPilots mobile app
     
  3. N017RW

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    As has been experienced the Tx power of the video down-link is greater than the controller transmit.

    According to this FCC report...
    https://fccid.io/pdf.php?id=2588743
    The video downlink is operating at 28.73 dBm with 2.0 dBi gain form the 4 antennas.

    And as many are aware the controller is limited to 20 dBm (in FCC mode).
     
  4. JohnnyShadow

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    Great info,Im diving into that report right now. Thanks N017RW.
     
  5. N017RW

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    There is also reports for the controller(s) so if you Google around you can find them too.